Solutions by everydaycalculation.com

1690 + 4550 is 9790.

- Find the least common denominator or LCM of the two denominators:

LCM of 90 and 50 is**450**

Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,

1690 = 16 × 590 × 5 = 80450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,

4550 = 45 × 950 × 9 = 405450 - Add the two like fractions:

80450 + 405450 = 80 + 405450 = 485450 - 485/450 simplified gives 9790
- So, 16/90 + 45/50 = 97/90

In mixed form: 1790

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